潮汐对大亚湾核电站液态排出物^3H扩散的影响  

EFFECT OF THE TIDE ON THE DIFFUSION OF ^3H IN THE LIQUID EFFLUENT DISCHARGED FROM DAYA BAY NUCLEAR POWER STATION

作　　者：张杰[1] 张春粦[1] 潘萌[1] 

机构地区：[1]暨南大学物理系,广州510632

出　　处：《辐射防护》2006年第4期215-219,共5页Radiation Protection

摘　　要：本文用ADI(隐式方向交替)法计算出核电站液态排放时刻的潮流场和西大亚湾海水监测点位从排放时刻至采样时刻的平均流速。通过比较分析发现大潮与小潮对3H扩散有明显差异(即大潮时一天的扩散效果要大于小潮时一天的扩散效果),进而引入等效时间间隔对原有模型[1]进行修正,从而获得更为完善的西大亚湾海水中3H的平均浓度在核电站液态3H排放后随时间的衰减关系。The tide field at the time of liquid effluent discharging from Daya Bay nuclear power station, and the average water speed at the monitoring points in west Daya Bay from the time of discharging to the time of sampling were calculated by ADI （Alternating Direction Implicit）method. By comparing analysis, the difference of ^3H diffusion between spring tide and neap tide （the expansion of ^3H within one day of spring tide is greater than that within one day of neap tide） was found. So, an equivalent diffusion time is introduced to modify the original model, and a better attenuation relation between the average ^3H concentration in west Daya Bay and the time since the liquid ^3H discharging is obtained.

关 键 词：大亚湾 核电站 ^3H 潮流场 等效时间 

分 类 号：X820.3[环境科学与工程—环境工程]